Exploited vulnerability · CISA KEV

Is CVE-2025-68686 exploited? Yes: in CISA KEV since 27 Jul 2026

Gociux · Fortinet FortiOS · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-68686, Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 27 Jul 2026, 167 days after it was published. It affects Fortinet FortiOS, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

What it is

Fortinet FortiOS contains an exposure of sensitive information to an unauthorized actor vulnerability. This may allow a remote unauthenticated attacker to bypass the patch developed for the symbolic link persistency mechanism observed in some post-exploit cases, via crafted HTTP requests. An attacker would need first to have compromised the product via another vulnerability, at filesystem level.

What to do

1. Check whether you run it. Look for FortiOS in your asset inventory, including appliances and cloud images. Stack check lists every exploited Fortinet CVE at once.
2. Apply the fix. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 10 Feb 2026.
4. Get told next time. Email alerts when CISA adds a CVE for Fortinet.

Other exploited CVEs in FortiOS

• CVE-2019-6693: Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability (25 Jun 2025)
• CVE-2024-21762: Fortinet FortiOS Out-of-Bound Write Vulnerability (9 Feb 2024)
• CVE-2022-41328: Fortinet FortiOS Path Traversal Vulnerability (14 Mar 2023)
• CVE-2022-42475: Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability (13 Dec 2022)
• CVE-2021-44168: Fortinet FortiOS Arbitrary File Download (10 Dec 2021)
• CVE-2019-5591: Fortinet FortiOS Default Configuration Vulnerability (3 Nov 2021)

References

• fortiguard.fortinet.com/psirt/FG-IR-25-934
• nvd.nist.gov/vuln/detail/CVE-2025-68686

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in July 2026 · Fortinet scorecard · act-now radar.